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Finding the Fourth Proportional to 27,366.78, 37,769.90 and 16,040.78

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Solution

The fourth proportional to 27,366.78, 37,769.90 and 16,040.78 is: 22,138.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,366.78 : 37,769.90 = 16,040.78 : x
  2. Step 2: Convert to fraction form
    27,366.78/37,769.90 = 16,040.78/x
  3. Step 3: Cross multiply
    27,366.78x = 37,769.90 × 16,040.78
  4. Step 4: Simplify right side
    27,366.78x = 605,858,576.32
  5. Step 5: Solve for x
    x = 605,858,576.32/27,366.78
  6. Step 6: Final answer
    x = 22,138.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.